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                        <h1 class="file-heading">File: src/node/class.node.tabMenu.js</h1>

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    <pre class="code prettyprint linenums">
/*
 * Copyright (c) 2014 Gwennael Buchet
 *
 * License/Terms of Use
 *
 * Permission is hereby granted, free of charge and for the term of intellectual property rights on the Software, to any
 * person obtaining a copy of this software and associated documentation files (the &quot;Software&quot;), to use, copy, modify
 * and propagate free of charge, anywhere in the world, all or part of the Software subject to the following mandatory conditions:
 *
 *   •    The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
 *
 *  Any failure to comply with the above shall automatically terminate the license and be construed as a breach of these
 *  Terms of Use causing significant harm to Gwennael Buchet.
 *
 *  THE SOFTWARE IS PROVIDED &quot;AS IS&quot;, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE
 *  WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON INFRINGEMENT. IN NO EVENT SHALL THE AUTHORS
 *  OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
 *  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 *
 *  Except as contained in this notice, the name of Gwennael Buchet shall not be used in advertising or otherwise to promote
 *  the use or other dealings in this Software without prior written authorization from Gwennael Buchet.
 *
 *  These Terms of Use are subject to French law.
 */

var CGSGTABHEIGHT = 35;

/**
 * A tab menu
 * @class CGSGNodeTabMenu
 * @extends CGSGNode
 * @param {Number} x X position
 * @param {Number} y Y position
 * @param {Number} w Width of the tab menu
 * @constructor
 * @type {CGSGNodeTabMenu}
 */
var CGSGNodeTabMenu = CGSGNode.extend(
    {
        initialize: function (x, y, w) {
            //call the constructor of CGSGNode
            this._super(x, y);
            this.resizeTo(w, CGSGTABHEIGHT);

            /**
             * Define the class type.
             * Not mandatory but very useful, as Javascript does not have a mechanism to manage the type of class
             * @property classType
             * @type {String}
             */
            this.classType = &quot;CGSGNodeTabMenu&quot;;

            this._buttonRadius = 4;

            this._tabsContainer = new CGSGNode(0, 0);
            this._tabsContainer.resizeTo(w, 0);
            this._tabsContainer.color = &quot;#A0A0A0&quot;;
            this._tabsContainer.lineWidth = 0;
            this.addChild(this._tabsContainer);

            var sep1 = new CGSGNodeSquare(0, CGSGTABHEIGHT - this._buttonRadius + 1, w, this._buttonRadius);
            sep1.bkgcolors[0] = &quot;white&quot;;
            sep1.lineWidth = 0;
            this.addChild(sep1);
            var sep2 = new CGSGNodeSquare(0, CGSGTABHEIGHT - this._buttonRadius, w, 1);
            sep2.bkgcolors[0] = &quot;#A0A0A0&quot;;
            sep2.lineWidth = 0;
            this.addChild(sep2);

            this.hideUnderline = new CGSGNodeSquare(0, CGSGTABHEIGHT - this._buttonRadius, w, 1);
            this.hideUnderline.bkgcolors[0] = &quot;white&quot;;
            this.hideUnderline.lineWidth = 0;
            this.addChild(this.hideUnderline);

            this._tabsBaseline = new CGSGNode(0, CGSGTABHEIGHT - this._buttonRadius + 1);
            this._tabsBaseline.resizeTo(w, 0);
            this.addChild(this._tabsBaseline);

            /**
             * Array of the buttons in the menu
             * @property buttons
             * @type {Array} array of CGSGNodeButtons
             */
            this.tabs = [];

            /**
             * Event
             * @property onTabChanged
             * @default null
             * @type {Function}
             */
            this.onTabChanged = null;

            this._selectedTab = null;
        },

        /**
         * @method addButton
         * @param {String} text the text on the tab
         * @param {CGSGNode} view the root node for the view to show when is that is activated
         * @return {Object} The new created tab
         */
        addTab: function (text, view) {
            var button = new CGSGNodeButton(0, 0, text);
            //button.setHorizontalPadding(10);
            //button.setVerticalPadding(8);
            //button.setTextSizes([10, 10, 10]);
            //button.setFirstColors([&quot;#EAEAEA&quot;, &quot;white&quot;, &quot;white&quot;]);
            //button.setLastColors([&quot;#EAEAEA&quot;, &quot;white&quot;, &quot;white&quot;]);
            //button.setTextColors([&quot;#999999&quot;, &quot;#000000&quot;, &quot;#000000&quot;]);

            button.setTextClasses([&quot;custom-normal&quot;, &quot;custom-over&quot;, &quot;custom-deactivated&quot;, &quot;custom-selected&quot;]);
            button.setClasses([&quot;custom-normal&quot;, &quot;custom-over&quot;, &quot;custom-deactivated&quot;, &quot;custom-selected&quot;]);

            //button.lineWidth = 1;
            //button.strokeColor = &quot;#A0A0A0&quot;;
            //button.setRadiuses([this._buttonRadius, this._buttonRadius, this._buttonRadius]);
            //button._initShapes();

            var tab = {button: button, view: view};
            this.tabs.push(tab);

            var that = this;
            button.onClick = function (event) {
                that.selectTab(tab);
            };

            this._tabsContainer.addChild(button);

            this._recomputeButtonsWidth();

            if (!cgsgExist(this._selectedTab)) {
                this.selectTab(tab);
            }

            return tab;
        },

        /**
         * Select the tab passed in parameter
         * @method selectTab
         * @param {Object} tab
         * @return {Object} the selected tab
         */
        selectTab: function (tab) {
            if (cgsgExist(this._selectedTab)) {
                if (cgsgExist(this._selectedTab.view)) {
                    this._selectedTab.view.isVisible = true;
                    this._selectedTab.view.isTraversable = true;
                }
                this._tabsBaseline.detachChild(this._selectedTab.view);
            }
            this._tabsBaseline.addChild(tab.view);
            this._selectedTab = tab;

            for (var i = 0; i &lt; this.tabs.length; i++) {
                this.tabs[i].view.isVisible = false;
                this.tabs[i].view.isTraversable = false;
                this.tabs[i].button.setMode(CGSGButtonMode.NORMAL);
            }

            if (cgsgExist(tab.view)) {
                tab.view.isVisible = true;
                tab.view.isTraversable = true;
            }
            tab.button.setMode(CGSGButtonMode.SELECTED);
            this.hideUnderline.translateTo(tab.button.position.x, this.hideUnderline.position.y);
            this.hideUnderline.resizeTo(tab.button.getWidth(), 1);

            if (cgsgExist(this.onTabChanged)) {
                this.onTabChanged({tab: tab});
            }

            return tab;
        },

        /**
         * @method selectTabByIndex
         * @param {Number} index
         * @return {Object} the selected tab
         */
        selectTabByIndex: function (index) {
            return this.selectTab(this.tabs[index]);
        },

        /**
         * Recompute width for all buttons
         * @method _recomputeButtonsWidth
         * @private
         */
        _recomputeButtonsWidth: function () {
            var totalWidth = 0;
            var i;
            var bw = 0; //biggest width
            for (i = 0; i &lt; this.tabs.length; i++) {
                var w = this.tabs[i].button.getWidth();
                totalWidth += w;
                bw = Math.max(bw, w);
            }

            //each button get the same width:
            //whether the width of the biggest button, or the width of the tab / number of buttons
            if (totalWidth &gt; this.getWidth() || this.tabs.length * bw &gt; this.getWidth()) {
                //common width
                var cw = this.getWidth() / this.tabs.length;

                for (i = 0; i &lt; this.tabs.length; i++) {
                    this.tabs[i].button.setFixedSize(new CGSGDimension(cw, CGSGTABHEIGHT));
                    this.tabs[i].button.translateTo(i * cw, 0);
                }
            }
            else {
                for (i = 0; i &lt; this.tabs.length; i++) {
                    this.tabs[i].button.setFixedSize(new CGSGDimension(bw, CGSGTABHEIGHT));
                    this.tabs[i].button.translateTo(i * bw, 0);
                }
            }

        }
    }
);

    </pre>
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